This document has been reviewed as part of the transport area review team's ongoing effort to review key IETF documents. These comments were written primarily for the transport area directors, but are copied to the document's authors and WG to allow them to address any issues raised and also to the IETF discussion list for information. When done at the time of IETF Last Call, the authors should consider this review as part of the last-call comments they receive. Please always CC tsv-art@ietf.org if you reply to or forward this review. I have reviewed this document as TSV-ART reviewer. All in all, it is a well-written document, albeit with a somewhat atypical usage of YANG. I have only reviewed the document regarding typical TSV-ART issues. As far as I can see, the document does not contain any major problem related to Internet transport protocols.